Announcements

In addition to the security vulnerabilities described in the December 2017
Android Security Bulletin, Pixel and Nexus devices also contain patches for
the security vulnerabilities described below. Partners were notified of these
issues at least a month ago and may choose to incorporate them as part of their
device updates.

Security patches

Vulnerabilities are grouped under the component that they affect. There is a
description of the issue and a table with the CVE, associated references, type of vulnerability, severity,
and updated Android Open Source Project (AOSP) versions (where applicable). When
available, we link the public change that addressed the issue to the bug ID,
like the AOSP change list. When multiple changes relate to a single bug,
additional references are linked to numbers following the bug ID.

Functional updates

All supported Google devices will receive an Android 8.1 update as part of the December OTA.
Android 8.1 contains many functional updates and improvements to various parts of the
Android platform.

Common questions and answers

This section answers common questions that may occur after reading this
bulletin.

1. How do I determine if my device is updated to address these issues?

Security patch levels of 2017-12-05 or later address all issues associated with
the 2017-12-05 security patch level and all previous patch levels. To learn how
to check a device's security patch level, read the instructions on the Pixel
and Nexus update schedule.

2. What do the entries in the Type column mean?

Entries in the Type column of the vulnerability details table reference
the classification of the security vulnerability.

Abbreviation

Definition

RCE

Remote code execution

EoP

Elevation of privilege

ID

Information disclosure

DoS

Denial of service

N/A

Classification not available

3. What do the entries in the References column mean?

Entries under the References column of the vulnerability details table
may contain a prefix identifying the organization to which the reference value
belongs.

Prefix

Reference

A-

Android bug ID

QC-

Qualcomm reference number

M-

MediaTek reference number

N-

NVIDIA reference number

B-

Broadcom reference number

4. What does a * next to the Android bug ID in the References
column mean?

Issues that are not publicly available have a * next to the Android bug ID in
the References column. The update for that issue is generally contained
in the latest binary drivers for Nexus devices available from the Google Developer
site.

5. Why are security vulnerabilities split between this bulletin and the
Android Security Bulletins?

Security vulnerabilities that are documented in the Android Security Bulletins
are required in order to declare the latest security patch level on Android
devices. Additional security vulnerabilities, such as those documented in this
bulletin, are not required for declaring a security patch level.

Versions

Version

Date

Notes

1.0

December 4, 2017

Bulletin published.

1.1

December 5, 2017

Bulletin updated with link to firmware images and details on functional updates.